InChI=1S/C21H30O10/c1-19(2)5-10-9(16(19)26)4-8(7-22)21(29)11(6-20(10,21)3)30-18-14(25)12(23)13(24)15(31-18)17(27)28/h4,7,9-16,18,23-26,29H,5-6H2,1-3H3,(H,27,28)